Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Polymerization of polyethylene wax using various metallocene catalysts

다양한 메탈로센 촉매를 이용한 폴리에틸렌 왁스의 중합

  • Received : 2017.10.28
  • Accepted : 2017.11.28
  • Published : 2017.12.30
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Abstract

This study was conducted to analyze and characterize the properties of polyethylene wax polymerized and polymerized using various metallocene catalysts based on Indene and Cyclopentadien, which are different from Ziegler-Natta catalysts used in polyethylene polymerizatio n. The polymerization of polyethylene wax was carried out under various conditions by adjusting the polymerization temperature and the ratio of hydrogen gas used as a chain transfer agent and ethylene gas to metallocene catalysts containing ligands of different structures. The molecular weight and molecular weight distribution, The catalyst yields were compared and analyzed. As a result, the structure of a metallocene catalyst suitable for having a low molecular weight and a narrow molecular weight distribution was proposed and the ideal polyethylene wax could be polymerized.

본 연구는 폴리에틸렌 중합에 이용되는 Ziegler-Natta 촉매와는 다른 Indene및 Cyclopent adien을 기반으로 하는 다양한 메탈로센 촉매를 사용하여 폴리에틸렌 왁스를 중합하고 중합한 폴리에틸렌 왁스의 특성에 대해 분석하고 평가 하였다. 폴리에틸렌 왁스 중합은 각 다른 구조의 리간드를 포함하는 메탈로센 촉매에 대하여 중합온도, 연쇄이동제로 사용되는 수소와 에틸렌가스의 비율을 조정하여 다양한 조건하에서 중합을 시도 하였으며 그에 따른 분자량과 분자량 분포, 촉매 수율을 비교 분석하였다. 결과적으로 본 연구를 통하여 저분자량을 가지며 좁은 분자량 분포를 가지기에 적합한 메탈로센 촉매의 구조를 제안하였으며 이상적인 폴리에틸렌 왁스를 중합 할 수 있었다.

Keywords

References

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